package chap8;
//************************************************************************
//  SodaSurvey.java             Author:GK
//
//  Demonstrates the use of a two-dimensional array.
//************************************************************************

import java.text.DecimalFormat;

public class SodaSurvey {
    //--------------------------------------------------------------------
    //  Determines and prints the average of each row (soda) and each
    //  column (respondent) of the survey scores.
    //--------------------------------------------------------------------
    public static void main(String[] args) {
        int[][] scores = { {3, 4, 5, 2, 1, 4, 3, 2, 4, 4},
                {2, 4, 3, 4, 3, 3, 2, 1, 2, 2},
                {3, 5, 4, 5, 5, 3, 2, 5, 5, 5},
                {1, 1, 1, 3, 1, 2, 1, 3, 2, 4}};

        final int SODAS = scores.length;
        final int PEOPLE = scores[0].length;

        int[] sodaSum = new int[SODAS];
        int[] personSum = new int[PEOPLE];

        for (int soda = 0; soda < SODAS; soda++)
            for (int person =0; person < PEOPLE; person++)
            {
                sodaSum[soda] += scores[soda][person];
                personSum[person] += scores[soda][person];
            }

        DecimalFormat fmt = new DecimalFormat("0.#");
        System.out.println("Average:\n");
        for (int soda = 0; soda < SODAS; soda++)
            System.out.println("Soda #" + (soda + 1) + ": " +
                            fmt.format((float)sodaSum[soda]/PEOPLE));

        System.out.println();
        for (int person = 0; person < PEOPLE; person++)
            System.out.println("Person #" + (person + 1) + ": " +
                            fmt.format((float)personSum[person]/SODAS));
    }
}
